206513130 has 64 divisors (see below), whose sum is σ = 505346688. Its totient is φ = 54001920.

The previous prime is 206513107. The next prime is 206513143. The reversal of 206513130 is 31315602.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 206513097 and 206513106.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 490320 + ... + 490740.

It is an arithmetic number, because the mean of its divisors is an integer number (7896042).

Almost surely, 2^206513130 is an apocalyptic number.

206513130 is an abundant number, since it is smaller than the sum of its proper divisors (298833558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

206513130 is a wasteful number, since it uses less digits than its factorization.

206513130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 206513130 is about 14370.5647070670. The cubic root of 206513130 is about 591.0840264059.

Adding to 206513130 its reverse (31315602), we get a palindrome (237828732).

The spelling of 206513130 in words is "two hundred six million, five hundred thirteen thousand, one hundred thirty".